基于CFD技术的居住区室外风环境设计研究

发布时间：2018-05-06 02:11

本文选题：CFD模拟 + 居住区设计　；参考：《重庆大学》2015年硕士论文

【摘要】：在城市、文化、经济高速发展的今天,住宅的迅猛发展已成为中国式城镇化最为醒目的标志。风环境作为城市环境的重要组成部分,与城市发展和人类活动密切相关。相比于另外两种常用的风环境研究方法——现场观测法与风洞实验法——CFD技术具有周期短、成本低等特征,并可以用较为形象和直观的方式将模拟结果展示出来,因而被广泛应用。因此本文基于ANSYS CFX商用CFD软件,以乌鲁木齐市卡子湾居住区为案例,探讨居住区风环境的影响因子在规划设计中的应用。论文首先对国内外研究现状进行了梳理和总结,介绍了CFD技术的原理和分析方法,明确了本研究所采用的户外行人活动区舒适度、城市大气污染物扩散和城市热岛效应三大控制指标。在此基础上,运用CFD方法,对不同的建筑单体设计要素、建筑组合关系、建筑群平面布局及景观绿化模式进行了风环境模拟与对比,得出了这些因子对居住区风环境的影响规律。论文在上述模拟结果的基础上,对乌鲁木齐市卡子湾居住区规划项目进行了数值模拟与分析,运用本文所确定的三大控制指标体系,分析设计方案风环境的优劣。并根据CFD模拟的结果,采取有针对性的风环境优化策略,对居住区风环境进行改进。通过本研究,旨在让跨学科,多专业的理论更好的服务于城市建设中,使风环境模拟在居住区规划设计阶段就能得到有效的模拟与控制,从而扬长避短,得到更加合理与有益的设计实践。
[Abstract]:With the rapid development of city, culture and economy, the rapid development of housing has become the most striking symbol of urbanization in China. As an important part of urban environment, wind environment is closely related to urban development and human activities. Compared with the other two commonly used wind environment research methods, field observation and wind tunnel experiment, CFD has the characteristics of short period and low cost, and can display the simulation results in a more visual and intuitive way. As a result, it is widely used. Therefore, based on the ANSYS CFX commercial CFD software and taking the residential area of Kazi Bay in Urumqi as a case, this paper discusses the application of the influence factors of wind environment in the planning and design of residential area. Firstly, this paper summarizes the current research situation at home and abroad, introduces the principle and analysis method of CFD technology, and clarifies the comfort degree of outdoor pedestrian area used in this study. Urban air pollutant diffusion and urban heat island effect three control indicators. On this basis, using CFD method, the wind environment simulation and comparison of different architectural monomer design elements, architectural combination relations, building group layout and landscape greening mode are carried out. The effects of these factors on the wind environment of residential areas are obtained. On the basis of the above simulation results, the paper carries on the numerical simulation and the analysis to the Urumqi jiaziwan residential area planning project, uses the three control index system determined in this paper, analyzes the design scheme wind environment superiority and inferiority. According to the result of CFD simulation, the wind environment of residential area is improved by adopting the strategy of wind environment optimization. Through this study, the purpose of this study is to make the interdisciplinary, multi-professional theory better serve the urban construction, so that the wind environment simulation can be effectively simulated and controlled in the stage of residential planning and design, so as to take advantage of the advantages and avoid the weaknesses. Get more reasonable and beneficial design practice.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU984.12;TU119

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